Coronavirus disease (COVID-19) advice for the public: When and how to use masks

Coronavirus disease (COVID-19) advice for the public: When and how to use masks (WHO: last updated 19 June 2020) Advice on the use of masks in the context of COVID-19 Q&A: Masks and COVID-19 What is WHO’s view on masks? Masks should be used as part of a comprehensive strategy of…

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